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CVE-2018-19452· NVD / CVE Program· CNA mitre

A use after free in the TextBox field Mouse Enter action in IReader_ContentProvider can occur for specially crafted PDF files in Foxit Reade

A use after free in the TextBox field Mouse Enter action in IReader_ContentProvider can occur for specially crafted PDF files in Foxit Reader SDK (ActiveX) Professional 5.4.0.1031. An attacker can leverage this to gain remote code execution. Relative to CVE-2018-19444, this has a different free location and requires different JavaScript code for exploitation.

HighCVSS 7.8 · v3.0—No exploit No fix recorded
Published
Jun 7, 2019
Updated
Jun 16, 2026
EPSS
2.9% · 86th percentile
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Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.9%

Affected systems

VendorProduct
foxitsoftwarefoxit pdf sdk activex
microsoftwindows

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • foxitsoftware foxit pdf sdk activexup to 5.5.0 inclusive

Same product

foxitsoftware: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-19450A command injection can occur for specially crafted PDF files in Foxit Reader SDK (ActiveX) 5.4.0.1031 when parsing a launch action.
    32Monitor
  • CVE-2018-19449A File Write can occur for specially crafted PDF files in Foxit Reader SDK (ActiveX) Professional 5.4.0.1031 when the JavaScript API Doc.exp
    32Monitor
  • CVE-2018-19448In Foxit Reader SDK (ActiveX) Professional 5.4.0.1031, an uninitialized object in IReader_ContentProvider::GetDocEventHandler occurs when em
    32Monitor
  • CVE-2018-19447A stack-based buffer overflow can occur for specially crafted PDF files in Foxit Reader SDK (ActiveX) 5.4.0.1031 when parsing the URI string
    32Monitor
  • CVE-2018-19446A File Write can occur for specially crafted PDF files in Foxit Reader SDK (ActiveX) Professional 5.4.0.1031 when the JavaScript API Doc.cre
    32Monitor
  • CVE-2018-19445A command injection can occur for specially crafted PDF files in Foxit Reader SDK (ActiveX) Professional 5.4.0.1031 when the JavaScript API
    32Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-primary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

c
free(dev->buf);/* ... another thread is still running ... */process(dev->buf);

Fixed

c
lock(&dev->lock);free(dev->buf);dev->buf = NULL;unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records